Details on how to join M.Phil in commerce and Ph.D in Commerce? What is the name of the entrance for M.Phil in Commerce or Ph.D in Commerce? Percentage of marks required to join the course?

want to know the details how to join mpill in commerce and phd in commerce is there any entrance test , what is the name of entrance for mphill in commerce and phd in commerce , how to learn for entrance test is there any particular books or coaching centre details , what is the percentage of marks i have to get in entrance test to join the courses i have mentioned above. i want to join in loyola college for mphill in commerce and phd in commerce kindly inform me the fees details ,